Best Online Casino Sister Sites in the UK – Complete Guide

What Are Casino Sister Sites?

Casino sister sites mean the same company, same licence, multiple brands, all with active status. One UK operator holds a single UKGC licence and directly runs several casino brands under it.

On the UKGC public register, each of these brands is listed as ‘Active’, meaning it’s live, regulated, and a trading name/domain of the licence holder. These brands typically share the same games, payment options, terms, and UKGC protections because they all operate under the same licence.

Some licences include both ‘Active’ brands and ‘White Label’ brands. Active brands are operated by the licence holder itself, while white label brands are run by third-party companies under the same licence.

In both cases, the licence holder stays legally accountable, ensuring compliance is the same across all brands.

⚠️ Important Note: Shared ownership does not mean shared licences, which is a common misconception and where many guides mislead players. For example, Paddy Power and Sky Vegas share Flutter Entertainment as a parent company, but sit under separate UKGC licences. For players, casino sister sites sitting under the same licence mean consistent protections and enforcement, no matter the brand.

UK Casino Sister Site Networks at a Glance

The table below gives you a quick overview of the biggest UK casino sister sites, showcasing some of the most recognised networks operating in the country. We’ve listed each major network with key details including licence number, headquarters, number of active/white label brands, and their best current bonus.

Network	UKGC licence no.	Base	Active casinos	White Label casinos	Examples on Gamble Mind	Best Bonus
Jumpman Gaming Limited	39175	Alderney	18	131	Online Casino London, Freebet Casino, Free Spins No Deposit Casino, Justin Casino, Great Britain Casino	Online Casino London – Deposit £10 and win up to 500 bonus spins on Starburst.
ProgressPlay Limited	39335	Cyprus	20	107	JeffBet, MogoBet, Mr Superplay, The Online Casino, Winissimo	JeffBet – 100% up to £100 + 50 Free Spins on Rainbow Riches Megaways.
Broadway Gaming Ireland DF Limited	58267	Ireland	83	14	N/A	N/A
Skill On Net Limited	39326	Cyprus	39	18	SpinGenie, PlayOJO, SlotsMagic, Genting Casino, Knight Slots	SpinGenie – Deposit £10 get 120 Free Spins on Book of Dead.
White Hat Gaming Limited	52894	Malta	7	25	Casiku, Dream Vegas, Playzee, SpinYoo, Jackpot Village	Casiku – Deposit & wager £50 get 50 Wager-Free Spins on Big Bass Splash.

Same Look, Different Licence | Casinos That Share a Platform But Aren’t Sister Sites

Some UK casinos share the same website template or platform and look nearly identical, but they operate under completely separate UKGC licences with no confirmed ownership link.

These are independent casinos and what we call ‘platform-mates’, not sister sites in the licensing sense, and is a key distinction that many other guides fail to explain, often mistakenly merging platforms and licences incorrectly.

To put this into perspective, take Gamble Mind’s recommended brands London.bet, Planet Sport Bet, PricedUp, DragonBet, BetWright and BestOdds Casino, which all have the same look and feel, run on the same platform, but sit under entirely different UKGC licences.

Same Sportsbook Platform, Different Odds

The same concept applies to online sportsbooks. Many UK betting sites use the same third-party technology, sharing the odds engine, market structure, and bet slip mechanics. It’s the same “platform-mates, not sister sites” pattern as with casinos.

So why don’t they always show identical odds? Each sportsbook can adjust pricing, promotions, or margins (Vig) independently, meaning the same engine powers them, but the final odds vary based on their strategy and factors like local betting activity.

What Stays the Same Across Sister Sites

True sister casinos share the same operator and UKGC licence number. Some games and software providers overlap across sister sites, though this is not always completely or exclusively.

For example, Progress Play Ltd brands Casimpo, Betrino Casino, and MrSuperPlay share many titles in categories like ‘Casual’ and ‘Table Games’, but differ in others, with total game numbers being Casimpo 6,237, Betrino 6,216, and MrSuperPlay 5,080.

Payment methods are shared across sister sites as they’re integrated directly into the platform. Customer support is also centralised. We tested The Online Casino and Winissimo for instance and found that they both use the same email address ([email protected]) to handle queries, and this is the case across all Progress Play sites.

Self-Exclusion Applies Per Licence, Not Per Group

Limits and self-exclusion impact all brands under the same UKGC licence. For example, during our research of Progress Play Ltd sites, any limits you set at Casimpo, including deposit, wager, or session limits, apply across all sites network-wide on a rolling basis.

Self-exclusion works the same way and this is made clear in the responsible gambling section of your account with such messages (tested):

“Limits are applied at a network level, covering all accounts held within our network… The self-exclusion option will exclude you from all of our sites for a minimum of 6 months.”

What’s Different Between Sister Sites

The one thing guaranteed to differ between sister sites is their theme and branding. Each site has its own name, logo, colour scheme, and overall design.

App availability also varies, and whilst all sister sites are mobile-optimised, not all of them have a dedicated app. The welcome bonus structure and value also frequently differ.

To evaluate this further, we compared app availability and welcome offers across four Jumpman Gaming Limited casinos:

• Great Britain Casino: iOS and Android apps available. 500 bonus spins on Big Bass Bonanza.
• Justin Casino: iOS app only. 500 bonus spins on Big Bass Splash.
• Online Casino London: Android app only. 500 bonus spins on Starburst.
• Free Spins No Deposit Casino: This no deposit sister site doesn’t have an app, offers new players 5 no-deposit free spins on Aztec Gems, plus 500 bonus spins on Big Bass Splash.

Expert Tip:

Although casino sister sites run on the same platform, calling them identical downplays key differences. Lobby layout, promotion cadence, and support responsiveness vary between sites. Before assuming it’s a like-for-like swap, check the site’s current lobby, live promotions, and other unique features.

Why Do Sister Sites Matter? The Real Benefits for Players

Casino sister sites offer trusted platforms, comparable features, and easier ways to compare promotions and games. If you’re happy with how one site works, these UK casino alternatives are essentially pre-vetted substitutes without the risk of unfamiliar brands, offering similar perks but with different themes and branding.

To Find Casinos Similar to What You Already Use

If you’re familiar and satisfied with a casino’s layout, game selection, and support, then UK casino sister sites are the closest match without starting from scratch elsewhere. The basics stay the same, giving you a way to try new online casinos whilst sticking to what works for you.

To Make Comparing Casinos Easier

These platforms share key features like licences, software, games, and payment options, so comparing them is much more straightforward rather than starting fresh and going in blind. It strips out the noise and technicalities of gambling platforms, so you can focus on more ‘fun’ deciding factors like bonuses, presentation, and navigation.

To Find Casinos With Similar Bonuses, Games, or Features

You’ll find similar promotions with matching terms, wagering rules, and game eligibility. This consistency makes it easy to find games and bonuses that suit your preferences.

For example, during my tests of Skill On Net casinos including SpinGenie, Genting Casino, and SlotsMagic, I found that they all have games from UK leading software providers (Pragmatic Play, NetEnt, Red Tiger, Blueprint Gaming, and Evolution), plus bonus spins for new players, as well as a ‘Prize Twister’ reload feature for existing members.

How to Choose the Right Sister Site for You

The things to look for range from the type of bonus you want and your preferred payment method, through to verification protocols and game software.

Here are 4 practical tips to help you decide which casino sister site is right for you:

• Bonus Type Wanted: Decide on the bonus type that suits you best, including deposit match for extra credit, free spins offers (with or without a deposit), or no wagering offers so you can keep winnings without playthrough restrictions. Compare what’s on offer and weigh up which gives you the most value for your playstyle, as well as looking at whether the bonus is sticky, where your cash balance is used first before bonus funds.
  
• Preferred Payment Method: Deposit/withdrawal options are generally consistent across casino sister sites, but there can be exceptions from one platform to another. Niche methods like Google Pay, Trustly, or Paysafecard may not always be available, even if offered by other sister sites in the network. Standard options like Visa, Mastercard, PayPal, and Apple Pay tend to be more reliably included in the UK.
  
• Sign-Up & Verification Process: Look for a registration process that you’re familiar and comfortable with, including what details are needed and how verification is handled. Some sister sites like ProgressPlay casinos for instance, automatically verify accounts, but may request documents on a site by site basis within the same network (tested – confirmed via live chat on Casimpo).
  
• Game Software and Themes: UK casino alternatives under the same licence usually share the same game providers, but some titles might not be included across all sites. If you’re looking for a specific game or provider, double-check their availability, and if there’s a particular theme you enjoy, make sure the site has plenty of games within it to keep you engaged long-term.